A circular coil wire contains 1000 loops of wire. This coil has an area of 0.5 m2. A uniform magnetic field points perpendicular to the loop. The strength of the magnetic field is increased smoothly from 0 → 2 T in 4 seconds.  (a) What is the initial magnetic flux through the loop (when B = 0)?  (b) What is the final magnetic flux through the loop (when B = 2, 4 seconds later)? (c) What is the induced voltage in this coil?

Question 1: When an external magnetic flux through a conducting loop decreases in magnitude, a current is induced in the loop that creates its own magnetic flux through the loop. How does that induced magnetic flux affect the total magnetic flux through the loop? O It does not affect the total magnetic flux. O It decreases and then increases the total magnetic flux. OIt increases the total magnetic flux. OIt increases and then decreases the total magnetic flux. O It decreases the total magnetic flux. Part (a) Some additional information, which is not included in the video, is that the SI unit of magnetic flux is the weber, denoted Wb. Using that information and the contents of the video, solve this numerical problem: A conducting loop, with a resistance of 2.0 Q2, encloses magnetic flux that is increasing at the rate of 2.0 Wb/s. The magnitude of the current induced in the loop is... (select the best choice) Part (b) 02A 04A 01/2A O1A 01/4 A Imagine a circular conducting loop glued…

A circle wire loop with 10 turns of wire has an area of 0.5 m2. It is initially in a 0.3 T magnetic field. Then over 0.5 seconds it is moved to a location with no magnetic field.   What is the magnetic flux? (The unit of flux is Weber, W)  What is the induced emf (voltage)?

A circular coil of wire has radius 0.37 m, with 979 turns of wire in the coil. It is located in a magnetic field of 1.90 T, directed perpendicular to the plane of the loop. (a) What is the magnetic flux through the loop (in T m²)? (b) Now suppose the coil is attached to a 160 ohm resistor, and the magnetic field decreases to 0 in 1 second. What is the induced current in the circuit?

For a current-carrying loop attached to a fixed axis in a uniform magnetic field, what is the phase angle between the magnetic flux through the loop and the magnetic torque acting on the loop? In other words, what is the angular difference between when flux is maximum and when torque is maximum?